after setting up the test recurring invoices, i went to did some amendments.
At first, the email didn't went thro'.
After reading the forum, i realise we need to set the smtp to "ssl://"
It worked after.
There was an email send out to the test customer's email.

Now, in the email it says "You can view all your recurring payments by clicking here."
The word "here" is hyperlinked to "myDomain.com/logic/index.php?load=account/recurring"